casa-mp-base

error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic]

--- a/bfd.orig/elf64-ppc.c  2010-07-01 04:48:26.000000000 -0500

+++ b/bfd/elf64-ppc.c   2019-08-23 03:05:25.000000000 -0500

@@ -4609,7 +4609,7 @@

   len = strlen (name);

   dot_name = bfd_alloc (abfd, len + 2);

   if (dot_name == NULL)

-    return (struct elf_link_hash_entry *) 0 - 1;

+    return (struct elf_link_hash_entry *)-1L;

   dot_name[0] = '.';

   memcpy (dot_name + 1, name, len + 1);

   h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);

--- a/bfd.orig/elflink.c    2010-04-14 03:29:33.000000000 -0500

+++ b/bfd/elflink.c 2019-08-23 03:04:48.000000000 -0500

@@ -4916,7 +4916,7 @@

   len = strlen (name);

   copy = (char *) bfd_alloc (abfd, len);

   if (copy == NULL)

-    return (struct elf_link_hash_entry *) 0 - 1;

+    return (struct elf_link_hash_entry *)-1L;

   first = p - name + 1;

   memcpy (copy, name, first);

@@ -5028,7 +5028,7 @@

        }

      h = archive_symbol_lookup (abfd, info, symdef->name);

-     if (h == (struct elf_link_hash_entry *) 0 - 1)

+     if (h == (struct elf_link_hash_entry *)-1L)

        goto error_return;

      if (h == NULL)